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gitea/modules/git/repo_ref_nogogit.go
Lunny Xiao 4eb2a29910
Improve ObjectFormat interface (#28496)
The 4 functions are duplicated, especially as interface methods. I think
we just need to keep `MustID` the only one and remove other 3.

```
MustID(b []byte) ObjectID
MustIDFromString(s string) ObjectID
NewID(b []byte) (ObjectID, error)
NewIDFromString(s string) (ObjectID, error)
```

Introduced the new interfrace method `ComputeHash` which will replace
the interface `HasherInterface`. Now we don't need to keep two
interfaces.

Reintroduced `git.NewIDFromString` and `git.MustIDFromString`. The new
function will detect the hash length to decide which objectformat of it.
If it's 40, then it's SHA1. If it's 64, then it's SHA256. This will be
right if the commitID is a full one. So the parameter should be always a
full commit id.

@AdamMajer Please review.
2023-12-19 07:20:47 +00:00

87 lines
1.8 KiB
Go

// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
//go:build !gogit
package git
import (
"bufio"
"io"
"strings"
)
// GetRefsFiltered returns all references of the repository that matches patterm exactly or starting with.
func (repo *Repository) GetRefsFiltered(pattern string) ([]*Reference, error) {
stdoutReader, stdoutWriter := io.Pipe()
defer func() {
_ = stdoutReader.Close()
_ = stdoutWriter.Close()
}()
go func() {
stderrBuilder := &strings.Builder{}
err := NewCommand(repo.Ctx, "for-each-ref").Run(&RunOpts{
Dir: repo.Path,
Stdout: stdoutWriter,
Stderr: stderrBuilder,
})
if err != nil {
_ = stdoutWriter.CloseWithError(ConcatenateError(err, stderrBuilder.String()))
} else {
_ = stdoutWriter.Close()
}
}()
refs := make([]*Reference, 0)
bufReader := bufio.NewReader(stdoutReader)
for {
// The output of for-each-ref is simply a list:
// <sha> SP <type> TAB <ref> LF
sha, err := bufReader.ReadString(' ')
if err == io.EOF {
break
}
if err != nil {
return nil, err
}
sha = sha[:len(sha)-1]
typ, err := bufReader.ReadString('\t')
if err == io.EOF {
// This should not happen, but we'll tolerate it
break
}
if err != nil {
return nil, err
}
typ = typ[:len(typ)-1]
refName, err := bufReader.ReadString('\n')
if err == io.EOF {
// This should not happen, but we'll tolerate it
break
}
if err != nil {
return nil, err
}
refName = refName[:len(refName)-1]
// refName cannot be HEAD but can be remotes or stash
if strings.HasPrefix(refName, RemotePrefix) || refName == "/refs/stash" {
continue
}
if pattern == "" || strings.HasPrefix(refName, pattern) {
r := &Reference{
Name: refName,
Object: MustIDFromString(sha),
Type: typ,
repo: repo,
}
refs = append(refs, r)
}
}
return refs, nil
}